Not according top a friend a master plumber who has 12 trucks on the
He says tape gets a occasional leak.
Dope gets a occasional leak
The combo almost never leaks:)
When your paying nyour techs by nthe hour on fixed price jobs thats
It's been a few decades but I've fit miles of pipe when I worked in
chemical plants back in the 70s. Threaded pipe up to 2" and flanged up to
12". IMHO using both tape and dope would be a waste of time. Applied
properly and installed correctly, neither will leak.
When the game is over, the pawn and the king are returned to the same box.
Larry Wasserman - Baltimore Maryland - lwasserm(a)sdf. lonestar.org
Teflon tape is NOT recommended for gas, because if any of it "strings"
off inside the pipe it WILL block orfices - causing untold problems.
If you really know what you are doing, you CAN install tape so that it
cannot "string off" - but you really DO need to know what you are
doing. Teflon paste works much better, is much simpler, and will not
cause a problem unless you REALLY screw things up.
On Fri, 2 Jul 2010 19:00:11 -0400, "Stormin Mormon"
Used to also be you could not use galvanized fitting on NG lines here
- but now you CAN.. Some inspectors still don't like it, but it is now
legal in some areas.
It's possible the yellow tape MAY pass here now too, but when my
furnace was replaced about 3 years ago, it was still not allowed - the
whole job was done with pipe dope - just like the water heater 8 or
more years ago. The guy doing the furnace inspection said if there was
ANY teflon tape visible he could not turn the gas back on - period -
end of story.
I like BLACK iron pipe BECAUSE it is visibly different THAN water
pipe. So, YOU can tell by JUST looking which ARE which.
I've ALSO found that the LOCAL inspector may be RIGHT or WRONG, but on
some THING like teflon tape, IT IS easier to do it like the local
INSPECTOR wishes. NATURAL gas is low enough PRESSURE that either ONE
is likely to SEAL.
On Sat, 3 Jul 2010 09:22:14 -0400, "Stormin Mormon"
Up here they really like it if you paint the gas pipes yellow. IF
there is also galvanized water piping in the building.
Other than industrial/commercial sprinkler systems, galvanized water
piping is pretty much extinct around here.
Au Contraire, mes amis - I very often mention "up here in Ontario" or
other references to my location.
Waterloo Ontario - home of the RIM Blackberry, Open Text, Sandvine
Systems, MKS, and a slew of other world renouned technology companies.
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